Just adding this in for posterity
For more information on the engineering of these parts look here (may need to scroll back a few pages):
https://www.1addicts.com/forums/show...7#post25231637
We ended up getting 17 people in total for the monoball group buy, which was a great result. Got the CNC'd washers at the end of last week and they turned out fantastic. The washers were made to the design specs out of stainless steel, so will be strong and resistant to corrosion.
Due to the fact that the thickness of the washer would change the geometry of the suspension slightly, I have calculated that the joints must be installed 3mm offset to maintain the factory geometry. This is fairly easy with a hydraulic press and using a pair of digital calipers.
Very happy with how this project turned out, just need to get these things installed!
Big thanks to everyone who participated!